MPs have expressed "surprise" at the Prime Minster's attack on an element of housing benefit his Government has reformed which has left struggling households with less income. In David Cameron's well-trailed welfare speech in Kent on Monday - widely seen as ideas for the next Conservative manifesto - he said the policy of non-dependant deductions (NDD) was unfair and that one of his constituents feared her family would have to "split up" as a result. What he failed to mention, however, was that ...